I thought we were talking about meta and not noob players who need 15 bullets per kill using these guns. In what games are good players randomly spraying 15 bullets at long range to hope for kills and actually winning these duels consistantly?
Any one who is half decent at the game will know the krieg miles better than the ak at long range duels. but also is fine to use in mid-range , ak is only better close-range.
So what is your point exactly? The ak has lower accuracy that the krieg but when you use the ak in a duel your chances of winning depend more on just aiming at the guys head and shooting, that is all you do with the krieg because, as you mention, the krieg spray is shit, you only option in long-mid range duels is point and shoot..
And this is my entire point, you can theoretically say "ak has lower 1 bullet accuracy, so there is small chance of randomly hitting headshot with 1 bullet". But this isn't how gun duels play out, there are more factors than just aiming at peoples heads.